7942243 has 2 divisors, whose sum is σ = 7942244. Its totient is φ = 7942242.

The previous prime is 7942223. The next prime is 7942267. The reversal of 7942243 is 3422497.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7942243 - 2⁵ = 7942211 is a prime.

It is a d-powerful number, because it can be written as 7⁸ + 9³ + 4⁶ + 2⁵ + 2²¹ + 4⁷ + 3¹⁰ .

It is not a weakly prime, because it can be changed into another prime (7942223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3971121 + 3971122.

It is an arithmetic number, because the mean of its divisors is an integer number (3971122).

Almost surely, 2^7942243 is an apocalyptic number.

7942243 is a deficient number, since it is larger than the sum of its proper divisors (1).

7942243 is an equidigital number, since it uses as much as digits as its factorization.

7942243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 31.

The square root of 7942243 is about 2818.1985380736. The cubic root of 7942243 is about 199.5175287098.

The spelling of 7942243 in words is "seven million, nine hundred forty-two thousand, two hundred forty-three".